Air purifier



FIG. 1 is a perspective view of an air purifier, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is another side view thereof;

FIG. 6 is a top view thereof; and

FIG. 7 is a bottom view thereof.

FIG. 8 is an enlarged view of the encircled portion of FIG. 1; and,

FIG. 9 is an enlarged view of the encircled portion of FIG. 2.

The broken line showing of an air purifier is included for the purpose of illustrating portions of the article and forms no part of the claimed design.

The dot-dash lines encircling portions of FIGS. 1 and 2 are included for the purpose of illustrating areas which are shown enlarged in later figures, and form no part of the claimed design. 

CLAIM The ornamental design for an air purifier, as shown and described. 